Patents by Inventor Dennis L. Fredrickson

Dennis L. Fredrickson has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20240391359
    Abstract: A utility vehicle includes a plurality of ground-engaging members, a frame supported by the ground-engaging members, and a plurality of body panels supported by the frame. The utility vehicle also includes a radiator supported on a rear portion of the frame. Additionally, the utility vehicle includes an air intake assembly partially supported by an upper portion of the frame.
    Type: Application
    Filed: August 8, 2024
    Publication date: November 28, 2024
    Inventors: Donovan L. Fredrickson, Dennis J. Lutz, Owen J. Dickinson, Jason L. Sherrett, James J. Endrizzi, Aaron D. Deckard, Corrie S. Roytek
  • Publication number: 20240367475
    Abstract: A utility vehicle includes a plurality of ground-engaging members, a frame assembly, a cab frame assembly, a front suspension assembly, a rear suspension assembly, a power steering assembly, and a powertrain assembly, all of which may be configured to lower the center of gravity of the vehicle.
    Type: Application
    Filed: May 24, 2024
    Publication date: November 7, 2024
    Inventors: Aaron D. Deckard, Adam J. Schlangen, Alex R. Scheuerell, Aaron J. Nysse, Anthony J. Ripley, Daniel L. Goffman, Andy T. Ives, Donovan L. Fredrickson, Gordon J. Steinmetz, Keith A. Hollman, Anthony J. Komarek, Corrie S. Roytek, Shawn D. Peterson, Dennis J. Lutz
  • Patent number: 4434504
    Abstract: An airborne radio-telephone transceiver is provided having improved channeling and decode circuitry compatible with the selective signalling call-up system prescribed by the Federal Communications Commission. The decode circuitry includes a filter and detector dependent only on reception of a single selected frequency transmitted as a call-up signal by a ground station. A retriggerable, resettable, monostable multivibrator, configured as a pulse swallower, provides the necessary counter offset for proper call-up signal decoding. The invention includes scanning circuitry for rapid operator selection of active transmit-receive channels in the operator's geographic area.
    Type: Grant
    Filed: June 10, 1982
    Date of Patent: February 28, 1984
    Assignee: Frederickson Communications, Inc.
    Inventor: Dennis L. Fredrickson
  • Patent number: 4320357
    Abstract: A frequency synthesizer employing direct FM, as opposed to phase modulation, so subaudible tones may be transmitted, in the form of a 10 KHz increment, direct synthesizer with a skewed frequency standard deriving four intermediate 2.5 KHz tuning steps. Fast settling time of frequency change accommodates semi duplex operation, and a shaping network provides the amount of skewing changes required between band ends for substantially perfect tracking. A low division ratio programmed divider in the system maximizes transmitter signal to noise ratio, and a low pass filter in the synthesizer phase locked loop allows voice band moduation.
    Type: Grant
    Filed: July 1, 1980
    Date of Patent: March 16, 1982
    Inventors: Paul G. Wulfsberg, Dennis L. Fredrickson, Gregory L. Triplett, Ralph J. Crumrine, Cole E. Cunningham
  • Patent number: D274427
    Type: Grant
    Filed: September 14, 1981
    Date of Patent: June 26, 1984
    Assignee: Fredrickson Communications, Inc.
    Inventor: Dennis L. Fredrickson